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PIMSO 2023 - Mathematics - Secondary 4 / Grade 10 - National Round Question 12

PIMSO Maths · PIMSO 2023 - Mathematics - Secondary 4 / Grade 10 - National Round

Question 12

Mom had just filled the cookie jar when the 3 children went to bed. That night one child woke up, ate half of the cookies and went back to bed. Later, the second child woke up, ate half of the remaining cookies, and went back to bed. Still later, the third child woke up, ate half of the remaining cookies, leaving 3 cookies in the jar. How many cookies were in the jar to begin with?